xref: /illumos-gate/usr/src/head/iso/stdarg_c99.h (revision cd277642e0bdc71a7f57c550df1279b0c091d6e2)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*	Copyright (c) 1988 AT&T	*/
23 /*	  All Rights Reserved	*/
24 
25 
26 /*
27  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
28  * Use is subject to license terms.
29  */
30 
31 #ifndef _ISO_STDARG_C99_H
32 #define	_ISO_STDARG_C99_H
33 
34 /*
35  * An application should not include this header directly.  Instead it
36  * should be included only through the inclusion of other Sun headers.
37  *
38  * This header defines the va_copy variable argument macro, which is
39  * new in ISO C 1999, and thus not present in ISO C 1989 and ISO C++
40  * 1998.  Because this macro is a long-standing Solaris extension, it
41  * is also permitted in other contexts.
42  *
43  * The varargs definitions within this header are defined in terms of
44  * implementation definitions.  These implementation definitions reside
45  * in <sys/va_list.h>.  This organization enables protected use of
46  * the implementation by other standard headers without introducing
47  * names into the users' namespace.
48  */
49 
50 #include <sys/feature_tests.h>
51 
52 #ifdef	__cplusplus
53 extern "C" {
54 #endif
55 
56 /*
57  * va_copy was initially a Solaris extension to provide a portable
58  * way to perform a variable argument list ``bookmarking'' function.
59  * It is now specified in the ISO/IEC 9899:1999 standard.
60  */
61 #if defined(__EXTENSIONS__) || defined(_STDC_C99) || \
62 	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
63 	defined(_XPG6)
64 
65 #define	va_copy(to, from)	__va_copy(to, from)
66 
67 #endif	/* defined(__EXTENSIONS__) || defined(_STDC_C99)... */
68 
69 #ifdef	__cplusplus
70 }
71 #endif
72 
73 #endif	/* _ISO_STDARG_C99_H */
74